openbilibili/app/infra/canal/cmd/main.go

package main

import (
	"flag"
	"os"
	"os/signal"
	"syscall"
	"time"

	"go-common/app/infra/canal/conf"
	"go-common/app/infra/canal/http"
	"go-common/app/infra/canal/service"
	"go-common/library/log"
)

func main() {
	flag.Parse()
	if err := conf.Init(); err != nil {
		panic(err)
	}
	log.Init(conf.Conf.Log)
	defer log.Close()
	log.Info("canal start")
	canal := service.NewCanal(conf.Conf)
	http.Init(conf.Conf, canal)
	ch := make(chan os.Signal, 1)
	signal.Notify(ch, syscall.SIGHUP, syscall.SIGQUIT, syscall.SIGTERM, syscall.SIGINT)
	for {
		s := <-ch
		log.Info("canal get a signal %s", s.String())
		switch s {
		case syscall.SIGQUIT, syscall.SIGTERM, syscall.SIGSTOP, syscall.SIGINT:
			canal.Close()
			log.Info("canal exit")
			time.Sleep(time.Second)
			return
		case syscall.SIGHUP:
		default:
			return
		}
	}
}